Compilare: user.cpp: In function ‘int main()’: user.cpp:30:50: warning: format ‘%d’ expects argument of type ‘int’, but argument 3 has type ‘long long int’ [-Wformat=] fprintf (fout, "%I64d", 1 + 2 * (t * (t-1) ) ) ; ^ user.cpp:20:19: warning: variable ‘jos’ set but not used [-Wunused-but-set-variable] int n, x, y, i, jos, dr, st, sus, p ; ^ user.cpp:20:24: warning: variable ‘dr’ set but not used [-Wunused-but-set-variable] int n, x, y, i, jos, dr, st, sus, p ; ^ user.cpp:20:28: warning: variable ‘st’ set but not used [-Wunused-but-set-variable] int n, x, y, i, jos, dr, st, sus, p ; ^ user.cpp:20:32: warning: variable ‘sus’ set but not used [-Wunused-but-set-variable] int n, x, y, i, jos, dr, st, sus, p ; ^ user.cpp:23:53: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf (fin, "%d%d%d%lld%d", &p, &x, &y, &t, &n ) ; ^ user.cpp:26:41: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf (fin, "%d%d", &l[i], &c[i] ) ; ^